The button is in D3. I may use D4 latter (as a secret button maybe). By using D3, we can use the ftdi port to power the circuit, and to cable the button. But then, i want to see how many time a button-cell can be used.
so:

How to use the interrupt fonction to wake up when pressing the button, and have a 10 minutes wake-up if no press ?
(And yeah, i could take off all the serial part)

Thanks for helping !

ps: can't we write down the code ? It may be a bug from the forum but i can't go down...

If I undefine: //#define BATT_SENSOR 199
it's working.
But your code still not 100% so we have to find why.
But... but, i think i'm making a mistake: yes i plan to use 3volts power. But, i don't want it as a sensor ! I wan't it as a battery level like the very first SensebenderMicro sketch. So... I have to undefine BATT_SENSOR ? And i will not have it set to 3Vcc=100% ?

@Pierre-P How do you find the battery life please? I am planning to fit Sensebender with nrf24l01+ SMD and CR2032, but I wonder how long the battery is going to survive? Appreciate if depends on your sketch, but given one is conservative (i.e. no need to send temp/hum every 30-60 sec, but probably every 5-10mins or so), what's your estimate please?

I can't tell you for the moment, I haven't check the real voltage of the CR2032 at the beginning. I'll try to make two mesure between 30 days.
But my sketch is 1800000ms or 30min sleeping (if no-one press the button). Because it's a redundant information, my Jeedom controler have a meteo plugin who's working good. (i'll use it for the mini-night-temperature to have a message if there is glass on my car's windows).